Potentilla. Carpels in these specimens usually 5. I have not found so many as 10; although Dr. Torrey's figure represents a larger number, and also omits the villosity of the receptacle. This species is certainly embarrassing to the maintenance of these genera; but it ranks with Ivesia, although the foliage is anomalous.

IVESIA UNGUICULATA: laxe villosa, subpedalis; foliolis perplurimis quasi-verticillatis laxis plerisque bis-bipartitis, segmentis linearibus; stipulis pauci-laciniatis vel integris; floribus glomeratis; pedicellis brevissimis; calycis segmentis accessoriis linearibus vera triangularilanceolata acutissima fere adæquantibus; petalis dilatato-cuneatis longe tenuiter unguiculatis; staminibus sub-15, filamentis filiformi-subulatis ; carpellis 5-8.-Westfall's Meadows, Yosemite Valley, alt. 8,000 feet, in wet places, Bolander. Stems in tufts from a thickish caudex, from a span to a foot high. Leaves in aspect not unlike those of Horkelia tenuiloba, but the leaflets crowded much like those of Ivesia Gordoni, and whitish-silky or villous with long very soft hairs when young, but glabrate with age. The leaflets are 2 or 3 lines long, more commonly twice 2-parted into linear or linear-spatulate divisions, some of them simply 3-parted, others 2-parted, and the divisions cuneate and 2-cleft. Stipules lanceolate, acuminate and nearly entire, or broader and cut into 2 or 3 lanceolate lobes. Cymes or dense clusters shortpeduncled. Calyx 3 lines long, deeply cleft. Petals 2 lines long, the slender claw more than half the length of the broadly cuneateobovate lamina. Stamens shorter than the calyx, one inserted before each petal and one each side of it, i. e. two to each true calyx-lobe, not before its centre but lateral. The arrangement is, perhaps, more clearly expressed by saying that, when 15, ten are alternate with the ten calyx-lobes, counting the accessory ones, and five are opposite the latter. These five appear to be always present; but one or two, or even three or four, of the ten are occasionally wanting. Receptacle sparingly villous.

IVESIA SANTOLINOIDES (Gray, Proceed. Amer. Acad. 6, p. 531), char. suppl.: spithamæa ad pedalem; cyma demum effusa ramossissima, ramulis pedicellisque capillaribus ; achenio subreniformi-globoso utriculato calycem fructiferum implente. From fine fruiting specimens gathered by Bolander, on dry rocky hills along the Merced River, above the Yosemite Valley, alt. 9,000 feet. The inflorescence becomes paniculate, exceedingly effuse and decompound, and the pedicels generally from a quarter to half an inch in length. Petals orbicular, sessile.

Stamens 15, one before each true calyx-lobe, and two before each petal filaments very capillary and as long as the calyx. Carpel only one, gibbous, with a sublateral style, in fruit the coriaceous-utricular achenium rising out of the cyathiform base of the calyx, and enclosed by its conniving lobes. Cotyledons plano-convex, the short radicle oblique, pointing to the base of the style. It is really going too far to rank this plant under Potentilla.

POTERIUM OFFICINALE (Sanguisorba officinalis, L.), in a depauperate form, was collected by Mr. Bolander on the Mendocino Plains, in 1864: new to this continent.

GAYOPHYTUM STRICTUM: pube molli cinereum; caule (demum pedali) simplicissimo vel inferne parce ramoso rigido, a basi ad apicem in axillis foliorum angusto-linearum crebre florifero; petalis (incarnatis) oblongis bifidis calyce longioribus; antheris stam. breviorum polliniferis; stigmate subclavato breviter bifido; capsulis arcte sessilibus arrectis lineari-subulatis quadricostatis folia subæquantibus; seminibus in quoque loculo biseriatis ovalibus planoconvexis.- Dry hills, Cloverdale, Sonoma Co., Bolander. Petals 14, and capsules 5 or 6 lines long. My original specimen of G. casium is too imperfect for verifying the published characters; but the present plant seems to differ sufficiently in its strict and rigid habit, and closely sessile appressed pods with a tapering point and much thicker valves, as well as in the stamens and stigma; and the seeds are more than double the size. The plant is stouter than any other Gayophytum; but the ovary is only 2-celled, although the ovules are in four ranks.

CENOTHERA (GODETIA) WHITNEYI: minute puberula ; caule valido usque ad apicem crebre foliato; foliis oblongo-lanceolatis subintegerrimis; floribus confertis maximis; calycis tubo obconico segmentis multo breviore; antheris linearibus; stigmatibus linearibus elongatis ; capsulis sessilibus (nunc subsessilibus) fusiformi-oblongis hirsuto-canescentibus (8-12 lin longis), loculis polyspermis; seminibus adscendentibus. Plains at Shelter Cove, Humboldt Co.: "very striking and ornamental," Bolander. Stem about a foot high, simple. Leaves 1 or 2 inches long, tapering to both ends. Calyx-lobes fully an inch long. Petals fully 2 inches long, pink-purple, sometimes apparently with a crimson spot about the middle. Stigmas 3 lines long. The most splendid of all the Godetias, and very desirable for cultivation, from the fine color and great size of the flowers, crowded at the summit of the stem. In habit and in the capsule it is allied to E purpurea, &c. ;

but the stigmas are long and yellow. The species is named for Prof. Whitney, the distinguished head of the State Geological Survey, in the prosecution of which it was discovered.

BOLANDRA, nov. gen. Saxifragearum.

Calyx campanulatus, dilatatus, ultra ovarium liberum longe productus, 5-fidus, lobis triangulari-lanceolatis acuminatis recurvis æstivatione valvatis. Petala 5, fauci calycis inserta, subulato-attenuata, recurva, persistentia. Stamina 5, petalis alterna, iisdem breviora: antheræ cordato-biloba. Ovarium ovatum, basi lata sessile, inferne biloculare multiovulatum, superne longe bifidum, cornubus æqualibus intus mox apertis stigmate truncato terminatis. Styli proprii vix ulli.— Herba glabella, parvula, caulibus e radice granulato-bulbillifera gracilibus alternifoliis, foliis (subreniformibus 5-lobis) Saxifraga vel Boykinia, calyce Tellima, petalis Tolmieæ seu Tiarella sed majoribus firmioribus purpureo-viridulis calycis lobos subsimulantibus, carpellis mox hiantibus Tiarella, sed æqualibus stylo fere destitutis basi in ovarium biloculare Saxifraga modo connatis. Flores majusculi, laxe subcorymbosi, longius pedicellati. Fructus maturus deest.

BOLANDRA CALIFORNICA. - Yosemite Valley, on the Mariposa Trail, among rocks, July, H. N. Bolander. [Also coll. by Dr. Torrey, on foot-hills of the Sierra Nevada.) A span to near a foot high; the stems weak and slender. Leaves thin; the radical and lowest cauline round-reniform, about 5-lobed to near the middle, the broadish lobes somewhat 23-lobed or crenate-incised, on long petioles which are slightly dilated at the base; or the lower cauline with a dilated and clasping appendage at the base, resembling a pair of foliaceous adnate. stipules: the upper leaves, wanting the petiole, pass from panduriform or cordate-clasping into ovate or oblong partly clasping bracts. Calyxtube 3 lines long, very much broader than the included ovary, greenish, or the attenuate-pointed lobes, like the still more attenuate and longer petals, tinged with purple. Anthers emarginate at the top; the short cells not confluent. The subulate-conical beaks or summits of the ovary are hollow nearly to the stigma, but ovuliferous only below the junction: above, the ventral suture opens early. For the last few years no one has done so much as Mr. Bolander for developing the botany of his adopted State, and perhaps no one is likely to do so much hereafter. It is with great pleasure that I find among his own discoveries a modest but very interesting plant, inhabitant of the far-famed Yosemite

valley, which, being a new generic type in a favorite order, may most appropriately and deservedly bear Mr. Bolander's name and commemorate his services to our science. In applying this name to species, as I have occasion largely to do, I have reluctantly followed the example set for me by Mr. Lesquereux and Professor Tuckerman, in writing "Bolanderi"; yet for the genus (notwithstanding the name is doubtless Scandinavian) I prefer the form consecrated by unbroken usage in the strictly similar case of Solander (also of Dryander, if that is not a genuine Greek-made name), and here write Bolandra rather than Bolandera.

SEDUM OBTUSATUM: glabrum, subglaucum; foliis planis spathulatis cuneatisve, summis oblongis; floribus laxe cymosis pedicellatis 5meris; petalis ovali-oblongis "flavidis" sepala ovata longius superantibus, utrisque obtusissimis; seminibus appendice cultriformi terminatis. - Granite rocks in the Sierra Nevada, on Mount Hoffman and above Sonora Pass, Brewer; at Vernal Fall in the Yosemite Valley, Bolander. Habit and aspect of S. spathulifolium and S. Oreganum ; but the flowers larger than in the former, all pedicellate, and petals paler, in the specimens mostly seeming to have been almost white.

DEWEYA, Torr. & Gray, Fl. N. Am. 1, p. 641. This genus, which Bentham and Hooker have recently, with Velæa, reduced to Arracacia, may be sustained upon the undivided carpophore and the total want of stylopodia; perhaps also on the completely involute seed. There is, indeed, no decisive evidence as to the carpophore in the original species, of which fully ripe fruit has not yet been examined, but it remains quite entire after the fall of the carpels in the two species now added. It is to be noted, however, that Bentham, in Pl. Hartw. p. 187, describes Arracacia glaucescens as having "carpophorum vix apice bifidum"; but this is passed over in the Genera Plantarum, where much is made of the carpophore in this tribe.

DEWEYA ARGUTA, Torr. & Gray, 1. c.; Torr. in Bot. Mex. Bound. t. 26. Folia simpliciter pinnata. Calycis dentes subulati persisFructus oblongus, jugis subalato-elevatis.

tentes.

DEWEYA HARTWEGI: fere acaulis, secus petiolos venas venulasque foliorum scabrella; foliis biternatis et quinatis; foliolis obovatis seu ovali-oblongis quam D. argutæ minus argutis magisque confluentibus; calycis dentibus obsoletis; fructus paululum brevioris jugis carinatoelevatis vix alæ formibus. On the Sacramento, Hartweg, No. 1748, in flower. Near San Francisco, Dr. A. Kellogg, in fruit. A leaf

and single umbel of mature fruit, sent by Dr. Kellogg, enable me to confirm the suggested near relationship of this plant with D. arguta, with which it closely agrees except in the particulars indicated. The leaves have the stouter petiole first ternate, their divisions again ternate and bearing mostly 3 leaflets on the lateral divisions and 5 on the middle one, or else the lateral primary divisions are simply 5-7foliolate. Fruit barely 3 lines long, laterally contracted, the salient ribs not so wing-like as in D. arguta, but otherwise similar. The broad intervals contain 2 or 3 vittæ. The mature seed is so involute that the cross section is circular and the albumen completely encloses a central cavity. This is also the case in Conium and Smyrnium when fully ripe. Carpophore wholly entire.

DEWEYA KELLOGII: acaulis, subpedalis; foliis triternatis; foliolis parvulis 3-5-fidis, segmentis cuneatis versus apicem argute dentatis incisisque, dentibus cuspidatis; umbella in scapo simplici solitario, involucellis e bracteis parvis subulatis; calycis dentibus obsoletis ; fructu didymo (lin. 2 longo et lato); mericarpiis turgidis; jugis filiformibus, lateralibus commissuram angustam marginantibus; valleculis bivittatis..Bolinas Bay, near San Francisco, June 23, with mature fruit, Dr. A. Kellogg. Caudex or root tuberous-thickened (as probably in both the preceding), its branches sending up a tuft of leaves about a span high, and a mostly taller naked scape. Involucre none. Rays of the umbel one or two inches, of the umbellets 2 or 3 lines long. Styles capillary. Fruit smooth. Carpophore entire, or only minutely cleft at the apex. Mature seed circular in cross section, with a large central cavity. [As this sheet passes to press I find that I have a flowering specimen, which was collected by Mr. Bolander, on Mission Hills, near San Francisco: scape 1-leaved below; flowers yellow.] Doubtfully referred to Deweya, but of widely different genus, is

OREOSCIADIUM ACAULE= Deweya? acaulis, Torr. Bot. Whippl. Exped. Pacif. R. R. Survey, 4, p. (94) 38. As to the fruit a clear congener of O. montanum, Wedd., but with conspicuous calyx-teeth. APIUM (AMMOSELINUM) POPEI=Ammoselinum Popei, Torr. & Gray in Pacif. R. R. Surv. 2, p. 165. C. Wright collected this in Texas, in 1851; but it is in Berlandier's collection of 1828, No. 1789. The carpophore is not 2-parted, as described, but merely 2-toothed at the apex; and the plant will range near Leptocaulis and Helosciadium leptophyllum, except for the longer fruit and the corky development of the lateral ribs filling the commissure.